they can easiy work the Mystique/Azazel issue on third sequel, with a little tidbit on this sequel. Just some words between the two, and in the third, they end together, in front of out of screen. At the end of the movie Mystique should be pregnant. that's all we need. like a final surprise in the movie. We dont need a full subplot for them, just some little momments during the movie, and the pregancy revealed at the end.